From Wiki: Metallic paint, also called polychromatic is a type of paint that is commonly used on new automobiles. Metallic paint can reveal the contours of bodywork more than non-metallic, or "solid" paint. Close-up, the small metal flakes included in the paint create a sparkling effect. This should not be confused with metal flake paint.
'Since carnauba waxes aren't as reflective as sealants, they can "mute" the flakes in metallic paint.
Zymol is made from high concentration carnauba, busted. Do NOT use Zymol Ebony on metallic paints. I am teaching you a correct attitude to handle a new issue. Try to solve the problem before you ask.